Monthly Archives: October 2012

Debbie and I have lived in our 25’ travel trailer year-round the past five years. It’s not too big, not too fancy, doesn’t have too much storage. And until recently didn’t have too much spare battery capacity.

We mentioned visiting QuartzFest 2012 in our post last January and how we’d dry-camped in the desert with good friends Herb and Lois. Lucky for us, their motor home generator has excess capacity and they were willing to share.

Trimetric 2025-RV

Truth is, we really didn’t know how much battery capacity we had at any given time. Sure, we’re starting with 460 amp/hours at full, but what about ten or twenty hours after full charge? We’ve just added a Trimetric 2025 battery monitor from Bogart Engineering into our trailer, and we are rapidly gaining a good understanding of our batteries’ charging and discharging patterns.

A couple of key measurements include days since full-charge, number of amp-hours from full, and most interesting to me, incremental watts or amps of each connected load.